<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>CSS引入方式</title>

    <!-- 1、内部样式表
    <style>
        div {
            color: yellowgreen;
        }
    </style> -->

    <!-- 3、外部样式表引入 -->
    <link rel="stylesheet" href="style.css">
</head>
<body>
    <h1>1、内部样式表</h1>
    <h1>2、行内样式表</h1>
    <p style="color:yellowgreen">hhhhhhhhhhhhhh</p>
    <h1>3、外部样式表</h1>
    <p>hhhhhhhhhhhhhhhhhhhhhhhhhhhh</p>
</body>
</html>